. Annual report of the Regents. New York State Museum; Science. rl8 NEW YORK STATE MUSEUM Geologic relations of Stark's Knob Stark's Knob igneous mass lies surrounded on the ground by the Hudson river slates. The accompanying sketch map, figure lr exhibits the essential features of the geologic relations. The Hudson slates are highly inclined, cleaved, and much broken rocks. A general northeast and southwest strike of the beds. Fig. 1 Ground plan of Stark's Knob plug, showing boundaries as they appear when traced on the present surface, with two faults, fff. The close set, parallel lines show
. Annual report of the Regents. New York State Museum; Science. rl8 NEW YORK STATE MUSEUM Geologic relations of Stark's Knob Stark's Knob igneous mass lies surrounded on the ground by the Hudson river slates. The accompanying sketch map, figure lr exhibits the essential features of the geologic relations. The Hudson slates are highly inclined, cleaved, and much broken rocks. A general northeast and southwest strike of the beds. Fig. 1 Ground plan of Stark's Knob plug, showing boundaries as they appear when traced on the present surface, with two faults, fff. The close set, parallel lines show the position of outcrops of the Hudson river slates, the arrows the direction of dip; the wide set lines exhibit the average strike of the slates in the vicinity. is observed in this district, but in the vicinity of Stark's Knob this direction is departed from on the east quite down to the river road. So far as my own observations go, there are no small dikes radiating from the main igneous mass into the adja- cent cleaved sedimentary rocks, nor are there any noticeable signs of metamorphism in these rocks attributable to the heating Action of the lavas in the plug. The Hudson river group. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York State Museum; University of the State of New York. Board of Regents. Albany : J. B. Lyon, State Printer
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Keywords: ., bookauthorne, bookcentury1800, bookdecade1880, booksubjectscience
